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  1. #1

    Join Date
    Jul 2010
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    South Ga.
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    Question on Polaris engine swap

    Will a 1993 SL 750 engine swap out with a 1994 SLT 750? Thanks for any help or advice


  2. #2
    johnsonmtz's Avatar
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    Oct 2006
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    Mt. Zion Illinois
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    Yes, but the water routing is different between the two years.

  3. #3

    Join Date
    Jul 2010
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    South Ga.
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    Thanks...pulled the heads off the donor motor and there is a milky sludge in the cylinders. cleaned them up, put heads back on, turned it over and it comes right back. Exhaust port has a layer on it as well. Would it be ok to start the engine and "blow it out" ? Could this be coming back through the water box and exhaust? Bought it cheap, but seller didnt know much history. Thanks.

  4. #4
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Oct 2006
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    Cleveland OH
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    Milky sludge is water mixed with 2 stroke oil normally.

    Any signs of rust on the cyls or crank?

  5. #5

    Join Date
    Jul 2010
    Location
    South Ga.
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    Thanks for the help, cylinders and pistons look good...(no rust). Did not pull the jugs to look at the crank. I cleaned them up good, teased it up with some pre-mix in the carbs and it will start. Gas tank has some sticky gas in it and figured I would take it out and clean it up tonite...no luck getting it out, yet. Filler neck dont wont to let go and it is tight fit as tank is in the front. Any suggestions? Can you clean it (gas tank) in the ski? Am I taking a big risk in not pulling the cylinders to look at the crank? Plans are to put this motor in another ski (3 seater) I have if it runs ok. Rekon where the "sludge" came from?

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